Reading and Vocabulary Development Unit 2 Lesson 3 Why is the sea salty?
There is a lot of salt on the Earth, and it mixes very well with water.
There is some salt in all water. Water on the land runs into lakes and rivers . The water from most lakes goes into rivers. These rivers run into the seas and oceans. They carry a little salt with them. Some of the ocean water moves into the air and clouds. It evaporates. Salt cannot evaporate. It stays in the ocean.
The water in the oceans has more salt than the water in rives. Ocean water is about 3.5%(three and a halt percent)salt. Some seas have more salt then others.
Some lakes do not have a river to carry the water and salt away. Some of the water evaporates, but the salt cannot. These lakes are very salty. There are two famous lakes like this. They are the Dead Sea in the Middle East and Great Salt Lake in the state of Utah in the United States. They are much saltier than the Atlantic Ocean and the Pacific Ocean. (177 words) 1. True or False
1) Salt mixes with water. ( ) 2) Clouds have salt in them.( )
3) Water on the land moves into lakes and rivers. ( ) 4) There is salt in rivers. ( )
5) Rivers have more salt than oceans. ( ) 6) Salt evaporates. ( )
2. Circle the number of the main idea of the text.
1) The sea is salty because water evaporates and salt doesn’t. 2) The sea is salty because rivers run into oceans.
3) Water moves from the land to rivers to oceans to clouds and to the land again.
3. Put the right word in each blank.
evaporates moves carry ocean salt percent famous mix clouds Earth 1) Two of the students always __________the chair into our room. 2) The ______is round. It ________around the sun. 3) Many people put ___________ on their food. 4) Muhammad Ali was a _________ boxer.
5) Some people put sugar in their coffee. Then they __________ it with a spoon. 6) Some of the water in a swimming pool ______________. 7) The Pacific ___________ is bigger than the Atlantic Ocean. 8) There are beautiful white _____________in the sky today. 9) Eighty ________________ of the students are men.